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Analog Devices Inc. AD8677ARZ
- Part No.:
- AD8677ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8677ARZ.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:274
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Product details
Overview
AD8677ARZ from Analog Devices is a precision rail-to-rail output operational amplifier in an 8-lead SOIC_N package, featuring 130 μV maximum input offset voltage, 1.1 mA supply current, and ±4 V to ±18 V dual-supply operation. It delivers high DC accuracy and low noise for shunt current sensing, thermocouple amplification, and RTD signal conditioning in industrial instrumentation.
For engineers reviewing the AD8677ARZ datasheet, AD8677ARZ pinout, AD8677ARZ application, or AD8677ARZ equivalent, this page provides verified specifications, SOIC_N package details, temperature-stable offset performance (≤1.5 μV/°C), CMRR ≥120 dB, and real-world use cases in precision analog front-ends.
Technical Context
The AD8677ARZ employs Analog Devices' iPolar™ process to achieve ultralow offset voltage drift (≤1.5 μV/°C) and high open-loop gain (≥1000 V/mV) across −40°C to +125°C. Its architecture supports stable operation with capacitive loads up to 12 nF and maintains phase margin of 80° at unity gain.
It features rail-to-rail output swing (±13.95 V @ ±15 V supply, RL = 10 kΩ), 115 dB minimum PSRR, and 120 dB minimum CMRR - enabling high-accuracy closed-loop gains >100 without gain error degradation from supply or common-mode variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 130 μV max - enables ≤0.003% gain error in 100× instrumentation amplifier configurations |
| Input Offset Drift | 1.5 μV/°C max - ensures <10 μV total offset shift over full −40°C to +125°C range |
| Supply Voltage Range | ±4 V to ±18 V - supports wide industrial supply rails including ±5 V, ±12 V, and ±15 V systems |
| CMRR | 120 dB min - rejects >10⁶× common-mode interference in bridge sensor interfaces |
| PSRR | 115 dB min - suppresses power supply ripple to <0.5 μV/V at output under varying load conditions |
| Output Swing | ±13.95 V @ ±15 V / RL = 10 kΩ - delivers >93% rail utilization for maximum dynamic range |
| Gain Bandwidth | 0.6 MHz - sufficient for DC–10 kHz precision filtering and sensor signal conditioning |
| Supply Current | 1.1 mA typical - enables low-power operation while maintaining 15 mA output drive capability |
Pinout & Package
AD8677ARZ is packaged in an 8-lead narrow SOIC (R-8) with standard pinout and RoHS-compliant lead finish. The package measures 5.00 mm × 3.99 mm × 1.75 mm and supports surface-mount reflow per JEDEC MS-012-AA.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Null (NC) | No internal connection - left unconnected or grounded per layout best practice |
| 2 | Inverting Input (−IN) | Differential input node; high-impedance (1 nA max IB) for precision feedback networks |
| 3 | Noninverting Input (+IN) | Reference input node; matched to −IN for minimal input offset current error |
| 4 | Negative Supply (V−) | Connects to negative rail; supports operation down to −18 V with full specification compliance |
| 5 | Null (NC) | No internal connection - electrically isolated; no routing required |
| 6 | Positive Supply (V+) | Connects to positive rail; supports operation up to +18 V with full specification compliance |
| 7 | Output (OUT) | Rail-to-rail capable output; drives ≥15 mA into resistive loads with <0.05% linearity error |
| 8 | No Connect (NC) | Unused terminal - must remain floating; not bonded internally |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow offset voltage | 130 μV max ensures sub-0.1 mV absolute error in 4–20 mA transmitter output stages |
| iPolar™ process technology | Enables 1.5 μV/°C drift and 130 dB CMRR - outperforming legacy OP07 in thermal stability |
| Rail-to-rail output | Delivers ±13.95 V swing on ±15 V supplies - maximizes ADC input range in 16-bit data acquisition |
| Low 1/f noise | 0.25 μV p-p (0.1–10 Hz) minimizes baseline wander in thermocouple and strain gauge amplifiers |
| High PSRR/CMRR | 115 dB PSRR and 120 dB CMRR maintain accuracy in noisy industrial environments with shared ground paths |
| Extended temperature range | Specified from −40°C to +125°C - suitable for under-hood automotive sensors and factory-floor PLC modules |
Applications
| Shunt Current Measurement | Thermocouple Amplification |
|---|---|
Use Scenario: High-side current sensing in 24 V industrial motor drives with 50 mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision difference amplifier with gain = 100, rejecting common-mode voltage up to 24 V. Use Value: 130 μV offset contributes only ±0.26 mV error at 5 A full-scale - within 0.1% measurement tolerance. |
Use Scenario: Cold-junction compensation and linearization of Type K thermocouples in furnace controllers. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation amplifier front-end with programmable gain. Use Value: 1.5 μV/°C drift limits temperature error to <0.15°C over 100°C ambient swing - meets Class 1 thermocouple accuracy. |
| RTD Signal Conditioning | Precision Active Filter |
Use Scenario: 3-wire Pt100 bridge excitation and amplification in environmental monitoring nodes. IC Role / Device Role / Timing Role: Low-bias-current buffer and differential amplifier with matched input impedance. Use Value: 1 nA max input bias current prevents >0.1 Ω effective resistance error in 100 Ω RTD legs - preserves 0.1°C resolution. |
Use Scenario: 2nd-order low-pass filter (10 kHz cutoff) for anti-aliasing before 100 kSPS SAR ADC. IC Role / Device Role / Timing Role: Unity-gain stable op-amp with 80° phase margin driving 20 pF capacitive load. Use Value: 0.6 MHz GBW and 0.2 V/μs slew rate ensure <0.01% passband ripple and monotonic step response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP2177ARZ | Higher offset (25 μV typ, 60 μV max), lower supply current (400 μA), but slower GBW (1.3 MHz) | Better for ultra-low-power battery-operated sensors; less suitable for fast settling in 16-bit DAQ | Select OP2177ARZ when supply current <500 μA is critical and offset <60 μV suffices |
| LTC2057HMS8#PBF | Zero-drift architecture (0.015 μV/°C drift), higher cost, 1.6 MHz GBW, but 1.8 mA supply current | Superior for <0.01°C thermal stability in metrology-grade instruments; over-specified for industrial control | Choose LTC2057HMS8#PBF only when sub-0.02 μV/°C drift is mandatory and budget allows premium pricing |
Compared with OP2177ARZ and LTC2057HMS8#PBF, the AD8677ARZ offers optimal balance of ultralow offset (130 μV max), industry-leading drift (1.5 μV/°C), and SOIC_N compatibility - making it the preferred choice for cost-sensitive, high-accuracy industrial signal chains where zero-drift complexity is unnecessary.
Availability
AD8677ARZ is available at Aetrix Electronics and suitable for shunt current measurement, thermocouple amplification, and RTD signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8677ARZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD8677ARZ belongs to Analog Devices' precision op-amp product line, designed specifically for high-accuracy, low-drift industrial and medical instrumentation where long-term stability and wide supply range are essential.
FAQ
What is the maximum operating temperature range for the AD8677ARZ?
The AD8677ARZ is fully specified over the extended industrial temperature range of −40°C to +125°C. All key parameters-including offset voltage, CMRR, PSRR, and output swing-are guaranteed across this range per the Rev. A datasheet. This makes the AD8677ARZ suitable for under-hood automotive modules, factory-floor PLC I/O cards, and outdoor environmental sensors where ambient extremes are expected.
Does the AD8677ARZ support rail-to-rail input operation?
No, the AD8677ARZ does not feature rail-to-rail input. Its input voltage range is specified as ±3.5 V at ±5 V supply and ±13.5 V at ±15 V supply-i.e., 1.5 V away from each rail. However, its output is rail-to-rail, delivering ±13.95 V swing on ±15 V supplies with 10 kΩ load. For true rail-to-rail input/output, consider the AD8675 or AD8676 variants instead.
Can the AD8677ARZ drive capacitive loads without instability?
Yes, the AD8677ARZ is unity-gain stable and characterized for capacitive loads up to 12 nF at G = +1, with overshoot <5% and phase margin maintained at 80°. Figures 26 and 27 in the Rev. A datasheet confirm stable transient response with 1 nF and 10 nF loads. For loads >12 nF, external isolation resistance (e.g., 10–50 Ω in series with output) is recommended to preserve stability.
Is the AD8677ARZ pin-compatible with the OP07?
No, the AD8677ARZ is not pin-compatible with the OP07. While both are precision op-amps, the AD8677ARZ uses an 8-lead SOIC_N (R-8) package with NC pins at positions 1, 5, and 8, whereas the OP07 uses an 8-lead SOIC with active pins at all positions (including offset null). Direct replacement requires PCB layout revision. The AD8677ARZ's superior specs (lower power, lower drift, smaller footprint) justify redesign where performance uplift is needed.
What is the typical supply current of the AD8677ARZ at ±15 V?
The typical supply current of the AD8677ARZ is 1.1 mA per amplifier at ±15 V and +25°C, rising to 1.3 mA max over temperature (−40°C to +125°C). This value is measured with output unloaded (VO = 0 V) and remains stable across supply voltages from ±4 V to ±18 V, as confirmed in Table 2 of the Rev. A datasheet. It enables low-power precision amplification without sacrificing output drive (15 mA capability).
AD8677ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iPolar®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- 600 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 pA
- Voltage - Input Offset:
- 45 µV
- Current - Supply:
- 1.1mA
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8677ARZ FAQ
1.How can I place an order for AD8677ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8677ARZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD8677ARZ reliable?
The price and inventory of AD8677ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8677ARZ is usually 5 days.
3.What payment methods are accepted for AD8677ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8677ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8677ARZ?
AD8677ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8677ARZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD8677ARZ?
For technical support, including AD8677ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8677ARZ requirements.
6.How does Aetrix verify that AD8677ARZ is sourced from the original manufacturer or authorized distributors?
All AD8677ARZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD8677ARZ meets industry standards.
7.What is the process for return or replacement of AD8677ARZ?
All AD8677ARZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8677ARZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD8677ARZ part is unused and in its original packaging.
Return procedure for AD8677ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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